What usually happens after an egg gets fertilized
After an egg gets fertilized, several changes occur in the body of the female. Here is a general sequence of events that usually happen after fertilization:
1. Conception: The sperm travels through the uterus and fallopian tubes and fertilizes the egg, resulting in the formation of a zygote.
2. Zygote development: The zygote begins to divide rapidly through a process called cleavage. It forms a solid ball of cells called a morula, which then develops into a hollow structure called a blastocyst.
3. Implantation: The blastocyst migrates through the fallopian tube and attaches itself to the lining of the uterus, a process known as implantation. This usually occurs around 6-9 days after fertilization. Once implanted, the blastocyst receives nutrients from the mother's blood vessels to support its growth.
4. Formation of the placenta: The outer layer of the blastocyst develops into the placenta, an organ that facilitates the exchange of nutrients, oxygen, and waste products between the mother and the developing embryo.
5. Development of embryonic structures: The inner layer of the blastocyst develops into the embryo, which undergoes rapid cell division and differentiation. The embryonic structures, such as the neural tube, heart, limbs, and organs, begin to form during the embryonic period.
6. Hormonal changes: After fertilization, the body starts producing a hormone called human chorionic gonadotropin (hCG) that helps in maintaining pregnancy and supporting the growth of the embryo. Rising levels of hCG in the body can be detected in a pregnancy test.
7. Pregnancy: The fertilized egg continues to grow and develop within the uterus, supported by the placenta. The pregnancy progresses through different stages, including the embryonic period (from conception to around 8-10 weeks) and the fetal period (from around 8-10 weeks until birth).
It's important to note that while the above sequence of events is typical, there can be variations and complications, leading to different outcomes. It's always advisable to consult with a healthcare provider for accurate information and guidance during pregnancy.